Push knob



FIG. 1 is a top front perspective view of a push knob showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is bottom front perspective view; and,

FIG. 9 is a section view. 

CLAIM I claim the ornamental design for a push knob, as shown and described. 